MySQL billing Statistics (Part 1): MySQL installation and client dbeaver connection

One 、 background

There is an IOT network card project that needs to be split , It's going to involve a lot of excel form , The detailed list issued by the operator contains card related information, such as card number 、 Traffic usage 、 cost 、 Card opening date, etc , But there is no branch field , Now you need to associate the card number with the corresponding table of the branch , Work out the bills for each branch office . Use here mysql To achieve , This document documents the test environment installation mysql5.7.37 Process and solve the error reporting problems encountered .

Two 、Mysql install

1.Repository download

Download and install MySQL Official Yum Repository

Log in and copy

[[email protected] ~]# rpm -ivh https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm

     

      
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2.Mysql Install source view

View the currently available Mysql Install source

Log in and copy

[[email protected] ~]# yum -y install mysql-community-server

     

      
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3. install Mysql database

Log in and copy

[[email protected] ~]# yum -y install mysql-community-server

     

      
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Find the error message ：“mysql-community-libs-5.7.37-1.el7.x86_64.rpm The public key for has not been installed ”、“ The failed package is ：mysql-community-libs-5.7.37-1.el7.x86_64 GPG The key is configured as ：file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql”

4. Problem solving

modify mysql-community.repo, take gpgcheck The value of is determined by 1 Change to 0

Log in and copy

[[email protected] ~]# cd /etc/yum.repos.d/
[[email protected] /etc/yum.repos.d]# view mysql-community.repo

:%s/gpgcheck=1/gpgcheck=0/g

     

      
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5. Re install

Log in and copy

[[email protected] /etc/yum.repos.d]# yum -y install mysql-community-server 

     

      
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installation is complete

3、 ... and 、 start-up Mysql And reset the password

1. start-up Mysql

Log in and copy

[[email protected] /etc/yum.repos.d]# systemctl start mysqld.service
[[email protected] /etc/yum.repos.d]# systemctl enable mysqld.service

     

      
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start-up mysql And set it to start automatically

2. land Mysql

Log in and copy

[[email protected] /etc/yum.repos.d]# cat /var/log/mysqld.log | grep password
2021-11-16T22:22:00.344286Z 1 [Note] A temporary password is generated for [email protected]: k8lB2OCPof+6

     

      
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After installed , Will be in my.cnf A password is automatically generated in the file , View and log in

3. Password rule modification

The default password rules are too complex to remember , Now modified

Log in and copy

mysql> set global validate_password_policy=0;
Query OK, 0 rows affected (0.00 sec)

mysql> set global validate_password_length=1;
Query OK, 0 rows affected (0.00 sec)

     

      
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4. Password change

Log in and copy

mysql> set password = password('Mysql123');

     

      
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After logging into the database, you need to reset your password before you can carry out subsequent operations

complete mysql install , It can be used happily later .

5. Create database zd

Log in and copy

mysql> create database zd character set utf8 collate utf8_bin;
Query OK, 1 row affected (0.00 sec)

     

      
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6. Create user loong576

Log in and copy

mysql> GRANT SELECT,INSERT,UPDATE,DELETE,CREATE,DROP ON zd.* TO [email protected]'%' identified by 'Loong576!';
Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)

     

      
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Create user loong576 And grant access to the database zd Authority , Then restart the database

7. Connection Authorization

Log in and copy

mysql> use mysql;
mysql> select host from user where user='loong576';
mysql> update user set host = '%' where user ='loong576';
mysql> FLUSH PRIVILEGES;

     

      
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Otherwise an error ：

8. Access authorization

Log in and copy

mysql> UPDATE mysql.user SET Grant_priv='Y', Super_priv='Y' WHERE User='loong576';
mysql> flush privileges;

     

      
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Otherwise an error ： Access denied for user ‘loong576’@‘%’ to database ‘zd’

Four 、 client DBeaver Connect

1. Software download

Log in to the official website to download the link https://dbeaver.io/download/ Download a software

2. Create connection

Open software , choice MySQL

Enter the server address and database name

Download the driver

Complete database connection